The Way That Printers Work
A printer will produce a hard copy of any document from your computer. Printers can use paper, transparencies and other media. Printers can be connected using a cable or wireless connection. Network printers will have networking interfaces so that many different computers can connect to one printer. Many times individual printers can sometimes be used to support network connections.
Some of the most modern printers can even directly connect to memory cards, image capture devices and memory sticks. Many times a printer can also be a combination printer, scanner and fax machine as well as photocopier. Many times these printers are called multi-function devices, multifunction printers or all in one printers.
Two of the most common types of printers are laser printers and ink jet printers. Laser printers do not use ink but use toner. Printing on a laser printer can be altered easily because the “ink” does not penetrate into the paper. More secure documents are done using ink jet printers because think penetrates into the paper. Ink jet printers can use fabric ribbons or inkjet heads for printing.
Toner based or laser printers use the technology called xerographic principle that is used for photocopiers. The toner is attracted to a light sensitive drum and then static electricity will then move the toner to the paper where it will bind based on pressure and heat. Laser printers use precision lasers and have the lowest back and white cost per copy, have some of the fastest print speeds and produce high quality print outs.
Laser printing works using the xerographic principle which is also the main function behind photocopying. Toner is applied to a light sensitive drum and then an elective charge is needed to transfer the toner onto the paper. Then heat and pressure ensures that the toner sticks to the paper. Laser printers are very popular because they have low cost per copy (only for black and white), produce high quality printouts and can print very fast.
Solid ink printers are also called phase change printers and they use heat to transfer the ink to the paper. These are sticks of ink which look like candle wax. This ink is melted and then applied using a print head. These types of printers are very good for printing on transparencies or other types of non-porous media.
There are several types of inkless printers such as thermal printers. These printers are used on gasoline dispensers, old fax machines, ATMs and cash registers. Special heat sensitive paper is needed for these to work.
Matthew Kerridge is an expert in printer products. If you would like more information about varieties of printers or are looking for a reputable printer retailer please visit http://www.ebuyer.com
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